When it becomes difficult for someone is addicted to gambling to quit. I think its not just about quitting gambling he has to do, if he as any other thing he is addicted to he should first quit on those ones because quitting those ones might make him lose interest automatically in gambling.
A lot of the time gambling doesn’t start on its own it arises from deeper behaviors or dependencies. When someone’s already chasing highs through drinking or smoking it’s easy for gambling to slide in as another escape.
Tackling the underlying addictions first can significantly transform the thinking and help break the chain. It’s everything connected and just quitting one item without addressing the others rarely works.